Improvement in splint-planes



@with gime ganar @fait Letters Patent life. 77,434, d atecl May 1868.

IMPROVEMENT IN senin-PLANES.

ttige gita-ult' maar in trillen Estan 33mm nu making part tt the am.

TO ALLfWHOM IT MAY CONGERN: l

Be it known that we, D-E. AIKEN and AIKEN, ofrAdrian, in the county of Lenawee, and State of Michigan, have invented a-newl and improved Plane; and we do hereby declare that the following is a. full, clear, andexact description thereof, which :will enable others skilled in the art to makeand use the same, lreference being had to thel accompanyngdrawing's, forming-'part of this specification. I i

The present invention relatesto a new and improved plane, or machine for the cutting of slats to be used lmore particularly in making curtains ;A and theinvention consists in making the'throat of the cutter in thewedge,

v and also in the use of a. spring within the throat, so constructed as tocause one slat'to push vanother out, whereby the throat and bit are left free', and all danger of the throatbeeoming clogged rendered impossible.

This spring also 'acts to press' the slat uniformly and closely up againstthe bit, thus leaving the slat smooth and straight, and is arranged so astofbe'susoeptible ofadjustment forthick or thin slats.

In the accompanying plate-of drawings our improvedplane is illustrated-v i Figure 1 being a centrallongitudinal vertical section through the plane,

Figure 2 a plan or top View, and

Figure' a view ofthe plane at on'e end.

Similar letters of reference indicate corresponding'parts. Y

A, in the drawings, represents the stock tothe plane madeupon its running-face .of a right-angular shape, es shown in iig. 3 by an vend view.

B, the cutter arranged in the stock A, asl in ordinaryrplanes, and there secured by driving a wedge, C, into 'the stock' over the'ontter, this wedge being cutout upon its u nder side to form or leave a passage or throat,fD,

between it and the top ofthe cutter B. E, a bent spring vsecured in wedge-C along its underside, with its loose end toward the opening F in the running-surface ofthe plane, whichspringis susceptible of adjustment by means of a set-screw, G, inthe wedge C, in proper position to bear therein. l

Among the .Ima-'uy advantages of-our improved'plane or-slat-outtermaybe here mentioned that for the following reasonsvit is superior to all others:

It is simple, cheap, and easily kept in order, runs remarkably easy, makes a superior slat, lighter, smoother,

and more durable than any-other, producing what is called a wafer-slab, which is more durable, for the reason tha-t it does not cnt the'thread used iufforming the slats into curtains.

We claim as new, and desire to secure by Letters Patenti The wedgeC'o'f the plane provided with a longitudinal groove in 'its under side,.in which is secured one end of the spring E, .whose` free end is adjusted to regulate thethickness of the slat to be cut by the screw G passing through the wedge, all constructed, arranged, and operating as 'described for the purpose specified.

` D. E. AIKEN, A. A. AIKEN. Witnesses:

A, M. ALLEN,

C. B. JOHNSON. 

